The SSS multiplying thing?
You know, where a figure with SSS self-intersects, or intersects another figure with SSS, you get a "glow" sort of effect. I ran a couple of searches for solutions but didn't see anything. Is there a fix or workaround?

Comments
Iray or 3delight?
If it is 3Delight and it is another figure...make sure they both have different SSS Group IDs.
If it is a self intersection...try lowering the SSS shading scale.